Journal
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
Volume 1861, Issue 1, Pages 1-8Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.bbamem.2018.10.008
Keywords
Sinapic add; Antioxidant; Lipid peroxidation; Membrane
Categories
Funding
- Erasmus Mundus Action 2 Project (Basileus III Project)
- Slovenian Research Agency [P4-0121]
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The efficiencies of sinapic acid and its derivatives syringic acid, syringaldehyde, three sinapoyl esters (ethyl, propyl, butyl sinapates), 4-vinylsyringol and sinapine were investigated for prevention of lipid peroxidation in correlation with their interactions with model lipid membrane systems. Significant antioxidant activities of propyl and butyl sinapates were seen by fluorimetric assay in phosphatidylcholine liposomes as model membrane using C11-BODIPV581/591 lipophilic fluorescent probe. The sinapic acid esters also had the highest impact on membrane structural properties, as observed by differential scanning calorimetry and fluorescence polarisation measurements. The greatest protection of phospholipids from peroxidation by these esters correlated well with their polarity and insertion into the lipid bilayer.
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